<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div>
  <input type="text" v-model="num" placeholder="请输入1-100之间的整数"><!--要拿用户输入的内容就要加v-model进行双向绑定-->
  <input type="button" value="猜一猜" @click="f()">
  <h1>{{info}}</h1>
</div>
<script src="js/vue.min.js"></script>
<script>
  let x = parseInt(Math.random()*100+1);
  let v = new Vue({
    el:"body>div",
    data:{
        info:"",num:""
    },
      methods:{
        f(){
            if(v.num>x){//如果用户输入的num>x
                v.info="猜大了!"
            }else if(v.num<x){
                v.info="猜小了!"
            }else{
                v.info="恭喜你猜对了!"
            }

        }
      }
  })
</script>
</body>
</html>